Put the island sink off center, with cabinets on both sides of the island
Use the **Island w/ Sink & Appliance Bays** (Furnish → Kitchen → Islands & Carts). Select it and open its **Sink** tab to put the sink **Left**, **Center** or **Right**; make the island **48″ deep or more** and it gets a second row of bays on the back, and the **Side** choice (Front / Back) appears. Drag base cabinets, a dishwasher or a wine fridge onto the bays: each one snaps flush to its side of the island and faces out, so the side facing the living room can be all cabinets.
A sink in the middle of an island is the easy default, but it's often not what people build. The sink goes nearer one end so a long stretch of counter stays free for preparing food, the dishwasher sits right beside it, and the side of the island that faces the living room gets cabinets instead of bare panels or stools. Planning that on paper is hard to picture; on the plan and in 3D you can see whether it works before anyone cuts a countertop.
In RoomSketch3D this is the job of one catalog piece: the Island w/ Sink & Appliance Bays. It is a grid of sections, three across. One section holds the built-in sink; every other section is an open bay that takes a real base cabinet or under-counter appliance. An island 48 inches deep or more (two standard 24″ cabinets back to back) gets a second row of three bays on its back. The island's Sink tab decides which section the sink takes.
This guide walks through the whole thing on a real plan (the Ranch House with 2-Car Garage template, whose kitchen opens onto the living room): moving the sink off center, filling the bays on both sides, the clearances to keep, and what to check in 3D.
What you'll need
- •A RoomSketch3D design with a kitchen (any kitchen or house template works)
- •The island's planned length and depth, and the widths of the cabinets and appliances you want in it
Step by step
- 1
Add the island and give it its real size
Open Furnish, pick the Kitchen tab and go to Islands & Carts (or search sink island). Add Island w/ Sink & Appliance Bays and drag it into place. It arrives at 72″ × 27″ and 36″ tall, one row deep.
Select it and type your island's size in W and D. Two numbers matter:
- Width ÷ 3 is the size of each section. A 72″ island has 24″ sections (right for a 24″ dishwasher or base cabinet); a 96″ (8′) island has 32″ sections, enough for a 30″ base cabinet. - Depth 48″ or more adds the back row. Below 48″ the island has one row of bays on its front; from 48″ it has three more on the back, and the Sink tab gains its Side choice.
Then turn the island with Rotate so its front faces the side you'll stand at to use the sink. While the island is selected, the small triangle on its outline marks the front. In the example below the island is turned to 180° so its front faces the kitchen counters and its back faces the living room.
The sink is drawn up to 33″ wide, centred in its section:
Island width Section Sink drawn Fits in the other bays 72″ (6′) 24″ 21″ 24″ dishwasher, 24″ base cabinet 96″ (8′) 32″ 29″ 24″ dishwasher, up to a 30″ base cabinet 108″ (9′) 36″ 33″ up to a 36″ base cabinet - 2
Open the Sink tab and pick the sink's position
With the island selected, the panel shows three tabs: Finish, Counter Top and Sink. (On a phone, tap More options at the bottom of the panel to see them.) Open Sink: - Position: Left, Center or Right puts the sink in the left, middle or right section. - Side: Front or Back puts it in the front or back row. This only appears on an island 48″ deep or more. Left and right are as you stand at the front of the island facing it, not as the plan is drawn on screen. On an island turned 180°, like this one, Left therefore shows on the right-hand end of the plan. A new island, or one saved before this option existed, has its sink in the middle of the front row.
The island's Sink tab: Position (Left / Center / Right) and, on a 4′-deep island, Side (Front / Back). - 3
See the cabinets make room for the sink
When the sink changes section, whatever stood in that bay moves into the section the sink just left. Here the sink starts in the Center with the dishwasher to its left; tapping Left moves the sink to the end and slides the dishwasher into the middle bay, so it still sits right beside the sink. The base cabinet at the other end doesn't move. That swap is what keeps the classic sink-and-dishwasher pairing intact. The NKBA asks for the dishwasher's nearest edge within 36″ of the sink's edge, and for 21″ of standing room beside its open door. Next to each other on the island's front row, both are easy.
Before: sink Center. After: sink Left; the dishwasher moved into the middle bay on its own. - 4
Drag cabinets and appliances into the bays
Empty bays show a dashed outline labelled Drag appliance here. Drag a piece from the catalog (or one already on the plan) and let go over a bay: - it snaps flush to that side of the island, centred in the section; - it faces out: front-row pieces face the front, back-row pieces are turned to face the back; - one piece per bay: dropping onto a filled bay replaces what was there, unless that piece is locked, in which case the drop doesn't snap. What fits a bay: rectangular base cabinets (any width; pick one no wider than the section) and the under-counter appliances Dishwasher, Drawer Dishwasher, Mini Fridge, Wine Fridge and Ice Maker 24″. Corner, lazy-susan and angled base cabinets don't, because they can't sit square in a bay. Every bay piece stays a real item with its own panel, so you can still change its doors, hardware, finish and countertop.
A Base Cabinet 30″ dropped on the empty back bay snaps flush to the island's back and faces out. - 5
Make the side facing the living room all cabinets
This is the layout most people ask for in an open plan: the sink and dishwasher on the kitchen side, and three base cabinets on the side facing the living room. On the Ranch template the 8′ × 4′ island sits 48″ from the counter fronts, the NKBA work-aisle width for two cooks (42″ is its minimum for one), and leaves about 7′ to the sofa behind it, well over the 36″ the NKBA asks for a walkway. Flow check OK confirms nothing overlaps. The trade-off: cabinets on the back mean no seating on that side. Stools need knee space under the counter, which the NKBA puts at 15″ deep × 24″ wide per person at a 36″ counter, and a cabinet front leaves none. That's why the template's three counter stools were removed here. If you want both storage and seats, keep the island one row deep and put the stools on the open back, or make the island longer and seat people at the ends.
The finished island in the Ranch House plan: sink and dishwasher toward the kitchen, three cabinets toward the living room. - 6
Or put the sink on the back
On a deep island, Side → Back moves the sink into the back row, in the column set by Position, and the cabinet that was there swaps to the front. Use it when the island's front has to face a particular way (for example, to keep an appliance bay toward the range) but you want to stand at the sink facing the other side, or when the sink should face a window or the living room. The basin always opens toward the side its row faces, so a back-row sink is used from the back.
Side → Back: the sink takes the back row and that row's cabinet moves to the front. - 7
Move, turn or resize the island and the bays come along
Drag the island and every piece in its bays moves with it; rotate it and they turn with it, keeping their places. Change its W or D, or move the sink, and each piece re-seats in its bay on the new shape. If a back row disappears because you made the island shallower than 48″, those pieces stay where they were relative to the island so you can decide what to do with them. Locked pieces stay put. Only bay pieces travel with the island. Pendant lights above it, and appliances or accessories standing on its counter, stay where they are; select them together with the island (drag a selection box around them all) to move the whole group. See selecting several items.
- 8
Check it in 3D from both sides
Open the 3D view and tick Dollhouse. From the living room you see what guests see: three cabinet fronts under the countertop, with the sink barely visible on top. Use the turn arrows at the bottom of the view to swing round to the kitchen side: the sink is a recessed stainless basin with a gooseneck faucet, drawn at real size in its section, with the dishwasher beside it and a cabinet at the far end. While you're there, look at how much counter you have left beside the sink for preparing food. That is the part a plan view makes easy to misjudge.
From the living room: the island's back row is three base cabinets. - 9
Look at the sink side
From the kitchen side the off-center layout is clear: the sink at one end, the dishwasher next to it, a base cabinet at the other end, and a long run of clear countertop to the right of the sink for preparing food. If the counter beside the sink feels short, this is the moment to make the island longer or move the sink back to the center.
From the kitchen side: off-center sink, dishwasher beside it, cabinet at the end.
Tips
Size the island from its sections
Each section is the island's width divided by three, and the sink is drawn up to 33″ wide and centred in its section (3″ narrower than the section on smaller islands). The table in the first step shows common sizes. A 24″ dishwasher needs an island at least 72″ wide.
An end sink leaves little counter on its outer side
Because the sink is centred in its section, Left or Right puts it near the end of the island: on an 8′ island only about 1½″ of counter is left beyond it. The NKBA recommends 24″ of landing on one side of a sink and 18″ on the other. With the sink at the end, the long side is easily 24″ or more (here over 5′, counting the counter over the dishwasher), but the short side is not 18″. If your design needs landing space on both sides, keep the sink Center, or make the island longer.
Leave a real prep area next to the sink
The NKBA asks for a stretch of continuous countertop at least 36″ wide × 24″ deep right next to the main sink for preparing food. Off-center sinks are popular precisely because they give that: on an 8′ island with the sink at one end, the other two sections are about 64″ of uninterrupted counter.
Keep the aisles wide enough
Measure from the island to the counter fronts, not to the walls: 42″ for one cook and 48″ for two or more (NKBA), and 36″ anywhere people just walk. The tape-measure tool keeps each measurement on the plan. Flow Check catches overlaps and door swings, but it doesn't measure aisles.
Common mistakes
Looking for Side on a shallow island
The Side choice only appears when the island is 48″ deep or more. On a 27″, 36″ or 42″ island there is one row, so the sink can only move left, center or right. Type 48 or more in D first.
Reading Left and Right off the screen
Left and Right are as you stand at the island's front. If the island is turned (180°, 90°…), the sink may go to the other end of the plan from what you expect. Check where the front triangle points, or simply try the other button.
Dropping a cabinet beside the island instead of on it
A piece only snaps into a bay when you let go of it over the island. Dropped next to the island, it stays where you dropped it. Drag it onto the bay you want and release there.
Keeping stools in front of back-row cabinets
Once the back row is cabinets, there's no knee space on that side. Stools left there sit against cabinet doors; move them to an end or drop the back row for that section.
Frequently asked questions
Can I put the sink off center on a kitchen island?
Yes. Use the Island w/ Sink & Appliance Bays, select it, open its Sink tab and choose Left or Right under Position. The cabinets and appliances in the bays move over to make room.
Can I have cabinets on both sides of the island?
Yes, on an island 48″ deep or more. It gets a second row of three bays on the back; drag base cabinets onto them and they face the back, for example toward the living room. A shallower island has bays only on its front.
Can I set the sink an exact distance from the end of the island?
Not on this island: the sink sits centred in the left, middle or right third. For an exact offset, build the island from separate base cabinets placed back to back, with a Sink Base cabinet and a sink where you want them, and drag each into place.
Which pieces fit the island's bays?
Rectangular base cabinets, the Dishwasher, Drawer Dishwasher, Mini Fridge, Wine Fridge and Ice Maker 24″. Corner, lazy-susan and angled base cabinets don't snap into a bay.
Will my older designs change?
No. An island saved before these options keeps its sink in the middle of the front row and nothing in your saved plan is rewritten. Islands 48″ deep or more now show their open back row in 3D.
How deep should a kitchen island with a sink be?
For cabinets on both sides, 48″: two 24″-deep cabinet rows back to back. For a sink with a seating overhang on the other side, about 39″ to 42″ (24″ of cabinet plus the NKBA's 15″ of knee space at a 36″ counter). See kitchen counter and island dimensions.
Sources
- NKBA Kitchen Planning Guidelines (National Kitchen & Bath Association, free edition on nkba.org) — Guideline 6: work aisle 42″ (one cook) / 48″ (multiple cooks); 7: walkway 36″; 8: 36″ / 44″ behind a seated diner; 9: 24″ × 15″ knee space per diner at a 36″ counter; 11: sink landing 24″ one side, 18″ the other; 12: 36″ × 24″ prep area next to the sink; 13: dishwasher within 36″ of the sink, 21″ standing space.
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